I coded this file by hand, which is one option, but most people are more comfortable with a 3d drawing program, using X3D to render for the Web.

我是手工编写这个文件的，这是一种选择，但是大部分人更喜欢使用3d绘图程序，并使用X3D呈现给Web。

youdao

First the project of the problem was analyzed and designed by using mathematical theory, then the test program was coded with this model.

首先利用数学工具分析设计出该问题的适合于分布式并行计算的方案，然后依照模型实现实验程序。

youdao